Which nutrient deficiency is commonly associated with an increased risk of falls and fractures in older adults?

A. Magnesium: Magnesium supports muscle and nerve function, but its deficiency is not the primary nutrient linked to falls and fractures in older adults. While low magnesium can cause weakness, it is not the most common cause of skeletal fragility. B. Vitamin D: Deficiency in vitamin D reduces calcium absorption and leads to weakened bone mineralization, increasing the risk of osteoporosis, falls, and fractures. It also contributes to impaired muscle function, making older adults more susceptible to imbalance and injury. C. Vitamin B12: Vitamin B12 deficiency can cause neuropathy, anemia, and cognitive changes, which may indirectly increase fall risk. However, it is not the nutrient most strongly associated with bone strength and fracture prevention. D. Iron: Iron deficiency primarily causes anemia, leading to fatigue and weakness. While this may reduce activity levels, it is not directly linked to increased fracture risk in older adults compared to vitamin D deficiency.